issue5432: avoid of serialization exception for javax.validation.ConstraintViolationException

[beiwei30]

What is the purpose of the change

fix issue #5432

Brief changelog

XXXXX

Verifying this change

XXXXX

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[codecov-io]

Codecov Report

Merging #5672 into master will decrease coverage by 0.02%.
The diff coverage is 0%.

@@             Coverage Diff              @@
##             master    #5672      +/-   ##
============================================
- Coverage     61.15%   61.13%   -0.03%     
+ Complexity      425      422       -3     
============================================
  Files           923      923              
  Lines         37519    37550      +31     
  Branches       5434     5438       +4     
============================================
+ Hits          22945    22955      +10     
- Misses        12088    12106      +18     
- Partials       2486     2489       +3

Impacted Files	Coverage Δ	Complexity Δ
...ache/dubbo/validation/filter/ValidationFilter.java	75% <0%> (-10.72%)	0 <0> (ø)
...he/dubbo/remoting/transport/netty/NettyClient.java	65% <0%> (-16.67%)	11% <0%> (-2%)
.../apache/dubbo/remoting/transport/AbstractPeer.java	58.69% <0%> (-8.7%)	0% <0%> (ø)
...ng/transport/dispatcher/all/AllChannelHandler.java	62.06% <0%> (-6.9%)	0% <0%> (ø)
.../remoting/transport/netty4/NettyClientHandler.java	59.32% <0%> (-6.78%)	0% <0%> (ø)
.../org/apache/dubbo/remoting/ExecutionException.java	15.78% <0%> (-5.27%)	0% <0%> (ø)
...e/dubbo/remoting/transport/netty/NettyChannel.java	52.27% <0%> (-3.41%)	19% <0%> (-1%)
...bo/rpc/cluster/support/FailbackClusterInvoker.java	67.21% <0%> (-3.28%)	0% <0%> (ø)
...pache/dubbo/remoting/transport/AbstractClient.java	65.67% <0%> (-2.99%)	0% <0%> (ø)
...exchange/support/header/HeaderExchangeHandler.java	61.94% <0%> (-2.66%)	0% <0%> (ø)
... and 12 more

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[chickenlj]

LGTM.